The coating head according to the present invention comprises a slit facing the supporting member along a width direction of the supporting member, the coating fluid being ejected through an opening of the slit, a front edge surface provided on an upstream side of the slit in a direction of travel of the supporting member, the front edge surface facing the supporting member, a back edge surface provided on a downstream side of the slit in the direction of travel of the supporting member, the back edge surface facing the supporting member, and a back edge back surface intersecting the back edge surface by forming a predetermined angle therebetween, wherein a surface roughness Ra of the back edge back surface is 0.2 .mu.m or less.
